EP1211894B1 - Device and method for processing pip in tv - Google Patents

Device and method for processing pip in tv Download PDF

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Publication number
EP1211894B1
EP1211894B1 EP01309843A EP01309843A EP1211894B1 EP 1211894 B1 EP1211894 B1 EP 1211894B1 EP 01309843 A EP01309843 A EP 01309843A EP 01309843 A EP01309843 A EP 01309843A EP 1211894 B1 EP1211894 B1 EP 1211894B1
Authority
EP
European Patent Office
Prior art keywords
picture
sub
video
signal
video signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01309843A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1211894A3 (en
EP1211894A2 (en
Inventor
Han Kyoung Cho
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1211894A2 publication Critical patent/EP1211894A2/en
Publication of EP1211894A3 publication Critical patent/EP1211894A3/en
Application granted granted Critical
Publication of EP1211894B1 publication Critical patent/EP1211894B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/485—End-user interface for client configuration
    • H04N21/4858—End-user interface for client configuration for modifying screen layout parameters, e.g. fonts, size of the windows

Definitions

  • the present invention relates to a TV, and more particularly, to device and method for processing a PIP (picture in picture) in a TV, in which a PIP is overlaid on a main picture, to permit watching the PIP as well as the main picture even in a region of the PIP on the same time.
  • PIP picture in picture
  • the PIP is a picture compressed in vertical and horizontal directions to form a sub-picture, and displayed in a main picture, which may, or may not be on the same channel with the sub-picture.
  • FIG. 1 illustrates a block diagram of a related art device for processing a PIP in a TV.
  • the related art device for processing a PIP in a TV is provided with a first video decoder 1 for receiving, and decoding a main picture video signal, a second video decoder 2 for receiving, and decoding a sub-picture video signal, a memory 3 for storing the video signal decoded at the second video decoder 2, and a digital/analog converter 4 for converting a digital video signal either from the first video decoder 1 or the memory 3 into an analog video signal.
  • the sub-picture video signal decoded at the second video decoder 2 is drawn from the memory 3, and displayed on a region of the main picture from the first video decoder 1, with the sub-picture being overlapped on the main picture. Accordingly, the main picture is not displayed in the region the sub-picture is displayed.
  • the related art device for processing a PIP in a TV has a problem in that no main picture is displayed in a region the sub-picture is displayed, unable to watch the main picture in the region once the PIP function is selected.
  • DE 19843919 A1 describes a method of mixing a secondary image into a main image, for example in a TV apparatus.
  • the method determines where to place the secondary image based on areas of movement in the main image.
  • the secondary image can also be overlaid with transparency.
  • the present invention is directed to device and method for processing a PIP (picture in picture) in a TV that addresses one or more of the problems due to limitations and disadvantages of the related art.
  • a device for processing PIP in a TV as set out in claim 1 there is provided a method for processing PIP in a TV as set out in claim 5.
  • FIG. 2 illustrates a block diagram of a device for processing a PIP in a TV in accordance with a preferred embodiment of the present invention
  • FIG. 3 illustrates relations of signals from the first format converter and the bit shifter in FIG. 2
  • FIG. 4 illustrates a flow chart showing the steps of a method for processing a PIP in a TV in accordance with a preferred embodiment of the present invention.
  • the device for processing a PIP in a TV in accordance with a preferred embodiment of the present invention includes a first video processing part 10 for receiving, and processing a main picture video signal into a signal displayable on a screen, a second video processing part 20 for receiving, and processing a sub picture video signal into a signal displayable on a region of the screen, a control part 40 for providing a control signal according to a users command, an adjusting part 30 for adjusting a mix ratio of a video signal from the second video processing part 20 in response to the control signal from the control part 40, a switching part 50 for superimposing the video signal from the first video processing part 10 and the video signal from the adjusting part 30 selectively according to the control signal from the control part 40
  • the first video processing part 10 includes an analog/digital converter 11 for converting the analog R, G, B video signals to the digital R, G, B video signals, and a first format converter 12 for maintaining outputs of the digital R, G, B signals from the analog/digital converter 11 constant.
  • the second video processing part 20 includes a video decoder 21 for receiving a superimposed video signal, and decoding a video signal from the superimposed video signal, a second format converter 22 for converting a format of an output signal of the video decoder 22 into a desired format.
  • the adjusting part 30 is a bit shifter for controlling a signal converted at the second format converter 22 to be presented starting from a most significant bit thereof in response to a control signal from the control part 40.
  • analog R, G, B video signals are converted into digital R, G, B signals, provided to the first format converter 12, and converted into a signal of a fixed format regardless of received signals.
  • the video decoder 21 receives a superimposed video signal through an antenna, decodes, and provides a video signal to the second format converter 22, which video signal is converted into a required format, provided to the bit shifter 30, and presented starting from the MSB (Most Significant Bit) according to an amount of bits the user intends to select.
  • MSB Mobile Bit
  • the digital R, G, B video signals from the first format converter 12 and the bit shifter 30 are provided to the switching part 50, and superimposed selectively according to a control signal from the control part 40. That is, the R, G, B video signals from the first format converter 12 according to the control signal from the control part 40 are superimposed on the R, G, B video signals from the second video processing part 20, a ratio of bit superimposition of the main picture, and the sub-picture video data can be adjusted.
  • the sub-picture data have an output dataline connected to each bit for superimposing on the main picture with reference to the MSB. Accordingly, the superimposition of the main data and the sub data starts from the LSB (Least Significant Bit) on a main dataline according to a ratio of mix with reference to the MSB, and if the ratio of mix is increased, an amount of superimposition of the sub data can be varied.
  • LSB east Significant Bit
  • the MSB is added to the LSB of the main data from the first format converter 12 before the presentation.
  • the sub picture signal i.e., the MSB from the bit shifter 30 is transmitted through the LSB line of the main picture.
  • a user's selection of the PIP function is determined (S11). Then, as a result of the determination (S11), if the user selects the PIP function, a PIP is displayed, and the present mix ratio of the PIP and the main picture is displayed in an OSD form (S12). If the user intends to change the mix ratio with reference to the OSD form of mix ratio, the mix ratio may be adjusted to a desired mix ratio (S13). On the other hand, if the user intends to watch both pictures as they are, the present mix ratio is stored (S14).
  • the device and method for processing a PIP in a TV of the present invention permits to watch the main picture even in a region the PIP is displayed by automatically adjusting a mix ratio of the region the main picture and the sub picture are to be superimposed, superimposing the pictures according to the users intention.
  • the device and method for processing a PIP in a TV of the present invention have the following advantages.
  • the possibility of mix ratio adjustment of the main picture and the sub picture permits to watch the main picture even in the sub picture.
  • the appropriate adjustment of the mix ratio of the main picture and the sub picture permits to watch a good quality main, and sub pictures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Human Computer Interaction (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Studio Circuits (AREA)
  • Controls And Circuits For Display Device (AREA)
EP01309843A 2000-11-24 2001-11-22 Device and method for processing pip in tv Expired - Lifetime EP1211894B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2000070328 2000-11-24
KR1020000070328A KR20020040303A (ko) 2000-11-24 2000-11-24 티브이의 부화면 처리장치

Publications (3)

Publication Number Publication Date
EP1211894A2 EP1211894A2 (en) 2002-06-05
EP1211894A3 EP1211894A3 (en) 2004-02-11
EP1211894B1 true EP1211894B1 (en) 2012-10-31

Family

ID=19701176

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01309843A Expired - Lifetime EP1211894B1 (en) 2000-11-24 2001-11-22 Device and method for processing pip in tv

Country Status (5)

Country Link
US (1) US7250982B2 (zh)
EP (1) EP1211894B1 (zh)
JP (5) JP3781665B2 (zh)
KR (1) KR20020040303A (zh)
CN (1) CN1207902C (zh)

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KR100598223B1 (ko) 2003-12-12 2006-07-07 엘지전자 주식회사 화질개선 기능을 갖는 영상표시기기 및 그 제어방법
KR20050066681A (ko) * 2003-12-27 2005-06-30 (주) 캐스트정보 주화면이 가려지지 않도록 보조화면이 투명 처리된픽쳐-인-픽쳐 신호를 얻기 위한 비디오신호 가공방법 및이를 위한 가공장치
KR100710370B1 (ko) 2005-01-31 2007-04-23 엘지전자 주식회사 디지털 수신기의 메뉴 화면 제공 방법 및 장치
KR100699265B1 (ko) * 2005-07-25 2007-03-27 삼성전자주식회사 디스플레이장치 및 그 제어방법
CN100581226C (zh) * 2005-08-05 2010-01-13 三星电子株式会社 用于提供多屏幕的设备以及动态配置多屏幕的方法
JP2008011085A (ja) * 2006-06-28 2008-01-17 Toshiba Corp デジタルｔｖキャプチャユニット、情報処理装置、および信号伝送方法
JP2008042703A (ja) * 2006-08-09 2008-02-21 Sharp Corp 画面表示モード切換装置、テレビジョン受像機及び画面表示モード切換方法
KR100854932B1 (ko) * 2007-08-06 2008-08-29 (주)씨앤에스 테크놀로지 영상 변환 기능을 가지는 영상 합성 장치
EP2464115A1 (en) * 2010-12-13 2012-06-13 Thomson Licensing Method and input-output device for rendering at least one of audio, video and computer graphics content and servicing device for delivering at least one of pre-rendered audio, pre-rendered video and pre-rendered computer graphics content
CN102427511B (zh) * 2011-09-28 2014-06-04 杭州士兰微电子股份有限公司 多路数字视频图像的处理方法与装置
US9531992B2 (en) * 2013-03-26 2016-12-27 Sharp Kabushiki Kaisha Display apparatus, portable terminal, television receiver, display method, program, and recording medium

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Also Published As

Publication number Publication date
JP3781665B2 (ja) 2006-05-31
CN1207902C (zh) 2005-06-22
EP1211894A3 (en) 2004-02-11
JP2008017530A (ja) 2008-01-24
US7250982B2 (en) 2007-07-31
JP4119442B2 (ja) 2008-07-16
CN1356827A (zh) 2002-07-03
JP5124619B2 (ja) 2013-01-23
JP2002218347A (ja) 2002-08-02
JP2010183646A (ja) 2010-08-19
EP1211894A2 (en) 2002-06-05
JP2006020357A (ja) 2006-01-19
JP4943279B2 (ja) 2012-05-30
JP5124618B2 (ja) 2013-01-23
KR20020040303A (ko) 2002-05-30
US20020063800A1 (en) 2002-05-30
JP2010246135A (ja) 2010-10-28

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